Efficient medium-voltage power transfer in the range of 30 MW to  150 MW thanks to innovative medium-voltage DC connection technology MVDC PLUS

MVDC PLUS® – the grid connector

Economic, flexible, powerful MV transmission. Regional HV & MV sub-transmission networks and MV distribution grids play a vital role in controlling the omnidirectional power flows that characterize today’s and even more so tomorrow’s energy ecosystems. MVDC PLUS® helps to manage this challenge and offers additional advantages.

Ready for the future energy distribution system

MVDC PLUS® is Siemens Energy’ answer to the challenges that regional high-voltage transmission networks and medium-voltage distribution grids increasingly have to deal with. It makes the advantages of DC technology available for applications in AC networks.

Reinforce MV transmission all the way

Transmission distances grow in increasingly liberalized markets. Growing infeed from distributed power generation units causes power quality and grid stability issues. Grid infrastructure needs to be expanded, upgraded, and reconnected to handle the volatile demand for flexible electricity supply. Distribution System Operators (DSOs) require a higher degree of transmission autonomy to fulfil today’s expanded range of tasks. 

Siemens Energy’ MVDC PLUS® is the efficient, robust, reliable, and compact solution that provides answers to all these challenges. It increases transmission capabilities, strengthens the grid infrastructure, helps minimize losses, and provides reactive power compensation and load flow control.

Address all challenges in MV transmission simultaneously

The increasingly complex energy landscape poses several new challenges to regional transmission and distribution grids. MVDC PLUS® is the innovative universal solution that helps handle all issues smoothly.

One solution, many advantages

MVDC PLUS® comes in three standardized type ratings and is based on Siemens Energy’ proven multilevel voltage-sourced converter technology. This ensures universal applicability and renders numerous benefits.

Improved connectivity

MVDC PLUS® does the trick when it comes to grid coupling and to connecting or re-connecting islanded  grids of independent frequency to superordinate supply structures.  

Improved capacity

MVDC PLUS® makes possible substantial and sustainable capacity improvements that can avert or delay network expansions.

Improved environmental compatibility

MVDC PLUS® requires comparatively little space and allows for the use of considerably less visually bothersome MV Overhead Transmission Lines (OHLs) for the transmission of up to 150 MW compared to AC solutions.

Improved economic efficiency

MVDC PLUS® offers an exceptional price / performance factor thanks to its large performance spectrum that renders a whole range of individual measures otherwise necessary.

Proven technology provides the reliable basis

MVDC PLUS® is based on modular multilevel voltage-sourced converter (VSC) technology. This mature technology from Siemens Energy has proven its efficiency and performance in numerous HVDC PLUS® and SVC PLUS® applications.

Proven high-quality technology

MVDC PLUS® is based on Siemens Energy’ renowned and proven HVDC PLUS® technology. The symmetrical monopole layout basically represents the HVDC-topology slimmed down to its basic functionality. At the heart of the system are rugged and powerful multilevel voltage-sourced converters (VSCs). They produce an almost ideal sinusoidal waveform and this way ensure consistent power quality. The converter stations allow for bidirectional power flow and can operate as STATCOMs.

Additional information


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